Add Embree-aarch64 thirdparty library

1 files changed, 271 insertions, 0 deletions

diff --git a/thirdparty/embree-aarch64/kernels/common/isa.h b/thirdparty/embree-aarch64/kernels/common/isa.h
new file mode 100644
index 0000000000..63fb8d3351
--- /dev/null
+++ b/thirdparty/embree-aarch64/kernels/common/isa.h
@@ -0,0 +1,271 @@
+// Copyright 2009-2020 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+
+#include "../../common/sys/platform.h"
+#include "../../common/sys/sysinfo.h"
+
+namespace embree
+{
+#define DEFINE_SYMBOL2(type,name)               \
+  typedef type (*name##Func)();                 \
+  name##Func name;
+  
+#define DECLARE_SYMBOL2(type,name)                                       \
+  namespace sse2      { extern type name(); }                           \
+  namespace sse42     { extern type name(); }                           \
+  namespace avx       { extern type name(); }                           \
+  namespace avx2      { extern type name(); }                           \
+  namespace avx512knl { extern type name(); }                           \
+  namespace avx512skx { extern type name(); }                           \
+  void name##_error2() { throw_RTCError(RTC_ERROR_UNKNOWN,"internal error in ISA selection for " TOSTRING(name)); } \
+  type name##_error() { return type(name##_error2); }                   \
+  type name##_zero() { return type(nullptr); }
+
+#define DECLARE_ISA_FUNCTION(type,symbol,args)                            \
+  namespace sse2      { extern type symbol(args); }                       \
+  namespace sse42     { extern type symbol(args); }                       \
+  namespace avx       { extern type symbol(args); }                       \
+  namespace avx2      { extern type symbol(args); }                       \
+  namespace avx512knl { extern type symbol(args); }                       \
+  namespace avx512skx { extern type symbol(args); }                     \
+  inline type symbol##_error(args) { throw_RTCError(RTC_ERROR_UNSUPPORTED_CPU,"function " TOSTRING(symbol) " not supported by your CPU"); } \
+  typedef type (*symbol##Ty)(args);                                       \
+  
+#define DEFINE_ISA_FUNCTION(type,symbol,args)   \
+  typedef type (*symbol##Func)(args);           \
+  symbol##Func symbol;
+  
+#define ZERO_SYMBOL(features,intersector)                      \
+  intersector = intersector##_zero;
+
+#define INIT_SYMBOL(features,intersector)                      \
+  intersector = decltype(intersector)(intersector##_error);
+
+#define SELECT_SYMBOL_DEFAULT(features,intersector) \
+  intersector = isa::intersector;
+
+#if defined(__SSE__) || defined(__ARM_NEON)
+#if !defined(EMBREE_TARGET_SIMD4)
+#define EMBREE_TARGET_SIMD4
+#endif
+#endif
+
+#if defined(EMBREE_TARGET_SSE42)
+#define SELECT_SYMBOL_SSE42(features,intersector) \
+  if ((features & SSE42) == SSE42) intersector = sse42::intersector;
+#else
+#define SELECT_SYMBOL_SSE42(features,intersector)
+#endif
+
+#if defined(EMBREE_TARGET_AVX) || defined(__AVX__)
+#if !defined(EMBREE_TARGET_SIMD8)
+#define EMBREE_TARGET_SIMD8
+#endif
+#if defined(__AVX__) // if default ISA is >= AVX we treat AVX target as default target
+#define SELECT_SYMBOL_AVX(features,intersector)                 \
+  if ((features & ISA) == ISA) intersector = isa::intersector;
+#else
+#define SELECT_SYMBOL_AVX(features,intersector)                 \
+  if ((features & AVX) == AVX) intersector = avx::intersector;
+#endif
+#else
+#define SELECT_SYMBOL_AVX(features,intersector)
+#endif
+
+#if defined(EMBREE_TARGET_AVX2)
+#if !defined(EMBREE_TARGET_SIMD8)
+#define EMBREE_TARGET_SIMD8
+#endif
+#define SELECT_SYMBOL_AVX2(features,intersector) \
+  if ((features & AVX2) == AVX2) intersector = avx2::intersector;
+#else
+#define SELECT_SYMBOL_AVX2(features,intersector)
+#endif
+
+#if defined(EMBREE_TARGET_AVX512KNL)
+#if !defined(EMBREE_TARGET_SIMD16)
+#define EMBREE_TARGET_SIMD16
+#endif
+#define SELECT_SYMBOL_AVX512KNL(features,intersector) \
+  if ((features & AVX512KNL) == AVX512KNL) intersector = avx512knl::intersector;
+#else
+#define SELECT_SYMBOL_AVX512KNL(features,intersector)
+#endif
+
+#if defined(EMBREE_TARGET_AVX512SKX)
+#if !defined(EMBREE_TARGET_SIMD16)
+#define EMBREE_TARGET_SIMD16
+#endif
+#define SELECT_SYMBOL_AVX512SKX(features,intersector) \
+  if ((features & AVX512SKX) == AVX512SKX) intersector = avx512skx::intersector;
+#else
+#define SELECT_SYMBOL_AVX512SKX(features,intersector)
+#endif
+
+#define SELECT_SYMBOL_DEFAULT_SSE42(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);            \
+  SELECT_SYMBOL_SSE42(features,intersector);                                  
+  
+#define SELECT_SYMBOL_DEFAULT_SSE42_AVX(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);                \
+  SELECT_SYMBOL_SSE42(features,intersector);                  \
+  SELECT_SYMBOL_AVX(features,intersector);                        
+  
+#define SELECT_SYMBOL_DEFAULT_SSE42_AVX_AVX2(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);                     \
+  SELECT_SYMBOL_SSE42(features,intersector);                       \
+  SELECT_SYMBOL_AVX(features,intersector);                         \
+  SELECT_SYMBOL_AVX2(features,intersector);                       
+
+#define SELECT_SYMBOL_DEFAULT_SSE42_AVX_AVX512SKX(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);                          \
+  SELECT_SYMBOL_SSE42(features,intersector);                            \
+  SELECT_SYMBOL_AVX(features,intersector);                              \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX2_AVX512KNL_AVX512SKX(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);                                   \
+  SELECT_SYMBOL_AVX(features,intersector);                                       \
+  SELECT_SYMBOL_AVX2(features,intersector);                                      \
+  SELECT_SYMBOL_AVX512KNL(features,intersector);                                 \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX2_AVX512SKX(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);                         \
+  SELECT_SYMBOL_AVX(features,intersector);                             \
+  SELECT_SYMBOL_AVX2(features,intersector);                            \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_SSE42_AVX_AVX2_AVX512KNL_AVX512SKX(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);                                         \
+  SELECT_SYMBOL_SSE42(features,intersector);                                           \
+  SELECT_SYMBOL_AVX(features,intersector);                                             \
+  SELECT_SYMBOL_AVX2(features,intersector);                                            \
+  SELECT_SYMBOL_AVX512KNL(features,intersector);                                       \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_SSE42_AVX_AVX2_AVX512SKX(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);                               \
+  SELECT_SYMBOL_SSE42(features,intersector);                                 \
+  SELECT_SYMBOL_AVX(features,intersector);                                   \
+  SELECT_SYMBOL_AVX2(features,intersector);                                  \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+  
+#define SELECT_SYMBOL_DEFAULT_AVX(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);          \
+  SELECT_SYMBOL_AVX(features,intersector);                        
+  
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX2(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);               \
+  SELECT_SYMBOL_AVX(features,intersector);                   \
+  SELECT_SYMBOL_AVX2(features,intersector);                       
+  
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX512KNL(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);                    \
+  SELECT_SYMBOL_AVX(features,intersector);                        \
+  SELECT_SYMBOL_AVX512KNL(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX512KNL_AVX512SKX(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);                              \
+  SELECT_SYMBOL_AVX(features,intersector);                                  \
+  SELECT_SYMBOL_AVX512KNL(features,intersector);                            \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX512SKX(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);                    \
+  SELECT_SYMBOL_AVX(features,intersector);                        \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+  
+#define SELECT_SYMBOL_INIT_AVX(features,intersector) \
+  INIT_SYMBOL(features,intersector);                 \
+  SELECT_SYMBOL_AVX(features,intersector);                                
+  
+#define SELECT_SYMBOL_INIT_AVX_AVX2(features,intersector) \
+  INIT_SYMBOL(features,intersector);                      \
+  SELECT_SYMBOL_AVX(features,intersector);                \
+  SELECT_SYMBOL_AVX2(features,intersector);
+
+#define SELECT_SYMBOL_INIT_AVX_AVX2_AVX512SKX(features,intersector) \
+  INIT_SYMBOL(features,intersector);                                \
+  SELECT_SYMBOL_AVX(features,intersector);                          \
+  SELECT_SYMBOL_AVX2(features,intersector);                         \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+
+#define SELECT_SYMBOL_INIT_SSE42_AVX_AVX2(features,intersector) \
+  INIT_SYMBOL(features,intersector);                            \
+  SELECT_SYMBOL_SSE42(features,intersector);                    \
+  SELECT_SYMBOL_AVX(features,intersector);                      \
+  SELECT_SYMBOL_AVX2(features,intersector);
+  
+#define SELECT_SYMBOL_INIT_AVX_AVX512KNL(features,intersector) \
+  INIT_SYMBOL(features,intersector);                           \
+  SELECT_SYMBOL_AVX(features,intersector);                     \
+  SELECT_SYMBOL_AVX512KNL(features,intersector);
+
+#define SELECT_SYMBOL_INIT_AVX_AVX512KNL_AVX512SKX(features,intersector) \
+  INIT_SYMBOL(features,intersector);                                     \
+  SELECT_SYMBOL_AVX(features,intersector);                               \
+  SELECT_SYMBOL_AVX512KNL(features,intersector);                         \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+
+#define SELECT_SYMBOL_INIT_AVX_AVX2_AVX512KNL(features,intersector) \
+  INIT_SYMBOL(features,intersector);                                \
+  SELECT_SYMBOL_AVX(features,intersector);                          \
+  SELECT_SYMBOL_AVX2(features,intersector);                         \
+  SELECT_SYMBOL_AVX512KNL(features,intersector);
+
+#define SELECT_SYMBOL_INIT_AVX_AVX2_AVX512KNL_AVX512SKX(features,intersector) \
+  INIT_SYMBOL(features,intersector);                                          \
+  SELECT_SYMBOL_AVX(features,intersector);                                    \
+  SELECT_SYMBOL_AVX2(features,intersector);                                   \
+  SELECT_SYMBOL_AVX512KNL(features,intersector);                              \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+
+#define SELECT_SYMBOL_INIT_SSE42_AVX_AVX2_AVX512KNL_AVX512SKX(features,intersector) \
+  INIT_SYMBOL(features,intersector);                                                \
+  SELECT_SYMBOL_SSE42(features,intersector);                                        \
+  SELECT_SYMBOL_AVX(features,intersector);                                          \
+  SELECT_SYMBOL_AVX2(features,intersector);                                         \
+  SELECT_SYMBOL_AVX512KNL(features,intersector);                                    \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+
+#define SELECT_SYMBOL_ZERO_SSE42_AVX_AVX2_AVX512KNL_AVX512SKX(features,intersector) \
+  ZERO_SYMBOL(features,intersector);                                    \
+  SELECT_SYMBOL_SSE42(features,intersector);                            \
+  SELECT_SYMBOL_AVX(features,intersector);                              \
+  SELECT_SYMBOL_AVX2(features,intersector);                             \
+  SELECT_SYMBOL_AVX512KNL(features,intersector);                               \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+
+#define SELECT_SYMBOL_DEFAULT_AVX_AVX2_AVX512KNL_AVX512SKX(features,intersector) \
+  SELECT_SYMBOL_DEFAULT(features,intersector);                                   \
+  SELECT_SYMBOL_AVX(features,intersector);                                       \
+  SELECT_SYMBOL_AVX2(features,intersector);                                      \
+  SELECT_SYMBOL_AVX512KNL(features,intersector);                                 \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+  
+#define SELECT_SYMBOL_INIT_AVX512KNL_AVX512SKX(features,intersector) \
+  INIT_SYMBOL(features,intersector);                                 \
+  SELECT_SYMBOL_AVX512KNL(features,intersector);                     \
+  SELECT_SYMBOL_AVX512SKX(features,intersector);
+  
+#define SELECT_SYMBOL_SSE42_AVX_AVX2(features,intersector) \
+  SELECT_SYMBOL_SSE42(features,intersector);               \
+  SELECT_SYMBOL_AVX(features,intersector);                 \
+  SELECT_SYMBOL_AVX2(features,intersector);
+
+  struct VerifyMultiTargetLinking {
+    static __noinline int getISA(int depth = 5) { 
+      if (depth == 0) return ISA; 
+      else return getISA(depth-1); 
+    }
+  };
+  namespace sse2      { int getISA(); };
+  namespace sse42     { int getISA(); };
+  namespace avx       { int getISA(); };
+  namespace avx2      { int getISA(); };
+  namespace avx512knl { int getISA(); };
+  namespace avx512skx { int getISA(); };
+}